Display unit

ABSTRACT

A display device includes a cabinet that has a liquid crystal display; a connection section that is rotatably provided relative to the cabinet about a first rotating shaft and parallel to the liquid crystal display; a cover body that is rotatably provided relative to the connection section about a second rotating shaft parallel to the first rotating shaft and that opens and closes the liquid crystal display; and spring pins that are provided in at least one of the first rotating shaft and the second rotating shaft and that generate frictional forces upon rotating of the connection section and/or the cover body.

TECHNICAL FIELD

The present invention relates to a display device which comprises adisplay device main body provided with a display section, and a coverbody covering the display section of the display device main body.

BACKGROUND ART

In a conventional display device, such as PDA (Personal DigitalAssistants), a small word-processor, a small computer, a smallelectronic dictionary, a portable television receiver, and an electronicclock, a cover body (cover) for covering the display section has beenrotatably fitted relative to the display device main body.

However, there has been no proposal that the cover body in such adisplay device may be held at a desired angle to the display section ofthe display device main body when the cover body is opened.

DISCLOSURE OF THE INVENTION

Considering the above circumstances, the present invention has proposeda display device which comprises a display device main body, and a coverbody covering the display section of the display device main body,wherein the cover body is rotatably fitted relative to the displaydevice main body, and which may hold the cover body at a desired angleto the display section of the display device main body.

In order to solve the above described problems and the like, and toachieve the above object, a display device according to the presentapplication is characterized by comprising: a display device main bodywhich has a display section; a connection section which is rotatablyprovided, relative to the display device main body, about a firstrotating shaft parallel to the display section; a cover body which isrotatably provided in the connection section about a second rotatingshaft parallel to the first rotating shaft, and opens and closes thedisplay section; and resisting means which is provided on at least oneof the first rotating shaft and the second rotating shaft of theconnection section, and generates a frictional force at a time when theconnection section and/or the cover body rotates.

By the above described configuration, the display device according tothe present application may hold the cover body at a predetermined angleto the display section of the display device main body, and may fix thecover body at an arbitrary position by giving friction to the coverbody. At the same time, the cover body may be used for protection of thedisplay section and also as a wall to prevent others from peeping at thedisplay section. Furthermore, the cover body may be also used as a standfor the display device main body.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a perspective view showing a configuration of an electronicdevice which is provided with a control device with a display deviceaccording to an embodiment of the present invention.

FIG. 2 is an outside perspective view of a DVD player showing anembodiment of an electronic device which is provided with a controldevice comprising the display device according to the present invention.

FIG. 3 is a plan view of the DVD player shown in FIG. 2.

FIG. 4 is a bottom view of a battery chassis body cut in half of the DVDplayer shown in FIG. 2.

FIG. 5 is a plan view of a player main body of the DVD player shown inFIG. 2.

FIG. 6 is a front view of the battery chassis body cut in half of theDVD player shown in FIG. 2.

FIG. 7 is a back view of the player main body of the DVD player shown inFIG. 2;

FIG. 8 is a side view of the DVD player shown in FIG. 2;

FIG. 9 is a side view of the player main body of the DVD player shown inFIG. 2;

FIG. 10 is a perspective view of an open/close cover of the player mainbody of the DVD player shown in FIG. 2 while the above cover is opened;

FIG. 11 is a perspective view of an essential part of a buckle part ofthe player main body shown in FIG. 10 while the buckle part is enlargedand seen from the right side.

FIG. 12 is a perspective view of an essential part of the buckle part ofthe player main body shown in FIG. 10 while the buckle part is enlargedand seen from the upper side.

FIG. 13 is an explanatory view of a holding stand part-cut off andillustrates the state of charging the DVD player shown in FIG. 2 forelectric power.

FIG. 14A is a front view of the display device according to the firstembodiment of the present invention.

FIG. 14B is a side view of the display device according to the firstembodiment of the present invention.

FIG. 14C is an enlarged perspective view of a spring pin in the displaydevice according to the first embodiment of the present invention.

FIG. 15 is a plan view of a cover body which is opened in the displaydevice shown in FIG. 14.

FIG. 16 is an explanatory diagram showing an essential part of across-sectioned central part of a display device main body in thedisplay device shown in FIG. 15.

FIG. 17 explains a used state of the first embodiment of the displaydevice according to the present invention, wherein FIG. 17A is a sideview of the cover body which is opened at an angle of a little bitsmaller than 90 degrees, and FIG. 17B is a side view of the cover bodywhich is opened at an angle of approximately 90 degrees.

FIG. 18 explains a used state of the first embodiment of the displaydevice according to the present invention, wherein FIG. 18A is a sideview of the cover body which is opened at an angle of approximately 270degrees as a stand, and FIG. 18B is a side view of the cover body whichis opened at an angle of approximately 360 degrees.

FIG. 19 shows a second embodiment of a display device according to thepresents invention, wherein FIG. 19A is a side view of the cover bodywhich is closed; FIG. 19B is a side view of the cover body which isopened at an angle of approximately 90 degrees; and FIG. 19C is a sideview of the cover body which is opened at an angle of approximately 270degrees.

FIG. 20 shows a third embodiment according to the present invention, andis a side view of the cover body which is closed.

FIG. 21 shows a forth embodiment according to the present invention,wherein FIG. 21A is a side view of the cover body which is closed andFIG. 21B is an explanatory view of a clicking plate which is enlargedand exploded.

FIG. 22 shows a fifth embodiment according to the present invention,wherein FIG. 22A is a side view of the cover body which is closed; FIG.22B is a side view of the cover body which is opened at an angle ofapproximately 180 degrees; and FIG. 22C is a side view of the cover bodywhich is opened at an angle of 360 degrees.

FIG. 23 shows a sixth embodiment according to the present invention,wherein FIG. 23A is a front view of the cover body which is closed andFIG. 23B is a side view of the cover body which is closed.

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described,referring to attached drawings. FIGS. 1 to 23 show an embodiment of anelectronic device provided with a control device which comprises displaydevices according to embodiments of the present invention, and theelectronic device is configured as a portable DVD player.

As shown in FIG. 1, the DVD player 1 is configured to comprise: a playermain body 6 for DVD (Digital Versatile Disc) which represents oneconcrete example of an information recording and reproducing device; acontrol device 2 for remote control of operations of the player mainbody 6; and a battery chassis body 3 which supplies electric power tothe control device 2 and the player main body 6. And, the player mainbody 6 and the control device 2 are connected through a first connectioncable 4 which represents one concrete example of signal transmissionmeans. Moreover, the player main body 6 and the other electronic devices(for example, a television set) are connected through a secondconnection cable 5 of similar signal transmission means.

As shown in FIG. 1 to FIG. 10, the player main body 6 is of a shellshape in which a terrace-type protruding section 6 a is provided in onepart of the circumference of a disk body. A disk chassis section 7 whichcomprises a circular recess is provided on the upper surface of theplayer main body 6. The disk chassis section 7 is configured to beopened and closed by an open/close cover 8 of a similar shell shape.Moreover, a buckle 9 which locks the open/close cover 8 in a closedstate is provided on the player main body 6.

As shown in FIG. 10, a disk drive device 10 which is elasticallysupported by the player main body 6 is disposed in the disk chassissection 7 of the player main body 6. The disk drive device 10 isconfigured to comprise a turntable 11 disposed in the center of the diskchassis section 7, and an optical pickup device 12 which executes one orboth of reproduction (read) and recording (write) of an informationsignal from and on an information storage surface of an optical disk,which is attached on the turntable 11, such as DVD and CD (compact disk)which represents one concrete example of a disk-type storage medium.

Though not shown in the figure, the turntable 11 is fitted on a rotationsection of a spindle motor which is fixed to a chassis at the fixedsection. Furthermore, the optical pickup device 12 is slidably supportedby a pair of guide shafts which are fixed to the chassis. The pair ofguide shafts are configured to be disposed parallel to each other with apredetermined distance in-between. Front end sections thereof aredisposed so as to sandwich the spindle motor, and rear ends thereof areextended backward.

The upper surface of the disk drive device 10 is covered with a coverplate 13. A circular central hole 14 a, and an opening section 14 bwhich has a long hole shape, and continuously extending backward fromthe circular central hole 14 a are provided on the cover plate 13. Then,the turntable 11 is protruded upward from the central hole 14 a, and anoptical head of the optical pickup device 12 is inserted to the openingsection 14 b. An object lens 15 of the optical head is configured toface the information storage surface of the optical disk attached on theturntable 11.

The turntable 11 has an engagement section 11 a which engages with thecenter hole of the optical disk, and a mounting section 11 b which isformed integrally with the engagement section 11 a and, at the sametime, on which a periphery section of the central hole of the opticaldisk is mounted. A plurality of engagement pawls are circumferentiallyprovided at approximately equal intervals in the engagement section 11 aof the turntable 11. Each engagement pawl is configured to be movable inthe radial direction of the mounting section 11 b, and to be urgedoutward in the radial direction by springs at any time.

The engagement section 11 a may engage with the center hole of theoptical disk by moving the engagement pawls backward against the springforces of the springs. In such an engagement state, each of theengagement pawls fixedly engages with the periphery section of thecentral hole by the spring forces of the springs. As a result, theoptical disk is chucked by the turntable 11 and is driven to rotateintegrally with the turntable 11.

The open/close cover 8 which is overlapped on the upper surface of theplayer main body 6 comprises a protruding section 8 a corresponding tothe protruding section 6 a of the player main body 6, and a side section8 b protruding continuously from the peripheral edge of the protrudingsection 8 a toward the lower surface side. In addition, a pair ofL-shaped arm pieces 17 and 17, which are protruding toward the lowersurface side, are provided on the protruding section 8 a of theopen/close cover 8. Each arm pieces 17 are inserted into the inside ofthe player main body 6 while passing through the protruding section 8 a,and the tip section is rotatably supported by a supporting shaft 18.

The supporting shaft 18 is supported at its both ends by the side of theprotruding section 6 a of the player main body 6, and the open/closecover 8 may perform looking-upward and looking-downward operation withthe supporting shaft 18 as the center of rotation.

Accordingly, the disk chassis section 7 is completely closed by theopen/close cover 8 by pressing down the open/close cover 8, and byoverlapping the cover 8 on the player main body 6. At this juncture, acover open/close switch is operated by a cover open/close detectionpiece 19 provided in the open/close cover 8 to detect whether theopen/close cover 8 is closed. The cover open/close detection piece 19 isdisposed on the free end side (the other side of the arm piece 17) ofthe side section 8 b of the open/close cover 8. A detection hole 20 forthe open/close cover as corresponds to the cover open/close detectionpiece 19 is provided in the disk chassis section 7 of the player mainbody 6. The cover open/close switch is disposed inside the detectionhole 20.

Though not shown, a cover-posture maintaining mechanism which maymaintain the posture of the open/close cover 8 at an arbitraryopen/close angle is provided in the player main body 6, relating to oneof the arm pieces 17 of the open/close cover 8. The cover-posturemaintaining mechanism may smoothly perform open/close operation of theopen/close cover 8 with a predetermined force by giving a predeterminedfrictional force in accordance with rotating operation of the open/closecover 8 and, at the same time, the open/close angle may be maintained atan arbitrary open/close position. As such a cover-posture maintainingmechanism, for example, a friction sliding mechanism, a damper device orthe like, which may generate a frictional force of a suitable magnitudebetween the arm piece 17 and a member of the player body 6, may beadapted.

Moreover, the buckle 9 is rotatably fitted on a front surface section onthe opposite side of the protruding section 6 a in the player main body6. As shown in FIG. 11 and FIG. 12 the buckle 9 has a shape thatconforms to the shape of the side surface of the player main body 6 suchthat the buckle 9 may be attached on the side section of the player mainbody 6, and is hinge-joined to the player main body 6 on one side of thewidth direction perpendicular to the circumferential direction.

That is, shaft receivers 9 a are provided on one side of the widthdirection of the buckle 9, and are inserted between a pair ofshaft-receiving convex sections 6 b and 6 b of the player main body 6. Ahinge section 21 is formed by passing a rotating shaft 21 a through thepair of shaft-receiving convex sections 6 b and 6 b and the shaftreceiving sections 9 a. A notch section 22 to which the free end side ofthe buckle 9 is detachably attached is provided on the upper surface,which is on the opposite side of the hinge section 21, of the playermain body 6.

An opening window 24 is provided approximately in the center part of thebuckle 9. Into the opening window 24 is inserted a beam receivingsection 23 of the remote control device which will be described laterand is provided approximately in the center part of the notch section 22of the player main body 6. The beam receiving section 23 is configuredto have beam receiving surfaces on two surfaces of the front and theupper surface of the player main body 6, and the beam receiving surfaceon the front is exposed through the opening window 24.

Furthermore, an engagement body 9 b which engages with and holds theopen/close cover 8 is provided in the buckle 9 to be capable ofadvancing and retreating by a advance/retreat movement mechanism. Theadvance/retreat movement mechanism comprises: a spring 150 which urgesthe engagement body 9 b outward at any time; a sliding member 151 whichadvances and retreats the engagement body 9 b against the spring forceof the spring 150; a spring member 152 which urges the sliding member151 in the retreating direction; a holder 153 which holds the abovemembers; a plurality of fitting screws 154 which fits the holder 153 tothe inside of the buckle 9, and the like. And, cam sections 155 a and155 b which are protruding in directions opposite to each other areprovided in the engagement body 9 b and the sliding member 151.

An engagement receiving section 26 with which the engagement body 9 bengages in a detachable manner is provided, corresponding to theengagement body 9 b of the buckle 9, approximately in the center part onthe free end side of the of the open/close cover 8. The engagementreceiving section 26 of the open/close cover 8 is inserted approximatelyinto the center part of the notch section 22 when the disk chassissection 7 is in a state of being closed. The tip of the engagementreceiving section 26 and that of the engagement body 9 b of the buckle 9contact each other at a time of the open/close cover 8 being overlappedon the player main body 6. Then, the engagement body 9 b is soconfigured as to retreat against the spring force of the spring 150 asthe buckle 9 is being pressed down, and to climb over the tip section ofthe engagement receiving section 26. Thereafter, by engaging theengagement body 9 b with the engagement receiving section 26 theopen/close cover 8 is firmly tightened and locked by the buckle 9.

Thus, by sliding the sliding member 151 to the right side in FIG. 12against the spring force of the spring member 152, the cam section 155 bprovided in the sliding member 151 makes the cam section 155 a providedin the engagement body 9 b retreat. Thereby, the engagement body 9 bretreats from the surface of the holder 153 to the inside thereof, andthe engagement of the engagement body 9 b with the engagement receivingsection 26 of the open/close cover 8 is released.

Subsequently, when the sliding member 151 is let go, the spring force ofthe spring member 152 slides the sliding member 151 to the left side.Thereby, the engagement body 9 b is reverted to the original state bythe spring force of the spring 150, and is protruded, as the cam section155 b is separated from the cam section 155 a.

The state in which the open/close cover 8 is locked by the buckle 9 canbe simply released by the following two modes. A first lock-releasingoperation is to slide the sliding member 151 in the circumferentialdirection. At this time, the engagement body 9 b retreats against thespring force of the spring 150 by sliding the sliding member 151 in thelateral direction. Thereby, the engagement of the engagement receivingsection 26 by the engagement body 9 b is released.

As a result, the buckle 9 can be pulled up, and the engagement body 9 bis separated wide apart from the engagement receiving section 26 by thepull-up operation so that the pull-up operation of the open/close cover8 becomes possible. In such a case, the pull-up operation of the buckle9 may be easily and smoothly performed with a small force.

Moreover, a second lock-releasing operation of a locked state of theopen/close cover 8 is to directly pull the buckle 9 up without thesliding operation of the sliding member 151. In such a case, as thespring force of the spring 150, that of the spring member 152, and themovement of the sliding member 151 become a resisting force when thebuckle 9 is pulled up, a pull-up force larger than that of the firstlock-releasing operation is required. However, the pull-up operation ofthe buckle 9 may be executed in a comparatively simple manner byadequately setting the values for the spring forces of the spring 150and the spring member 152.

In order to detect the open/close operation of the buckle 9, anopen/close protrusion 156 is provided on the inner side of the buckle 9.A buckle detection hole 27 is provided, corresponding to the open/closeprotrusion 156, on the front surface of the notch section 22 of theplayer main body 6. A buckle open/close switch which is a seconddetector for detecting the open/close operation of the buckle 9 isdisposed inside the detection hole 27. At this time, 27 by completelyputting the buckle 9 in place and by locking the open/close cover 8 theopen/close protrusion 156 is inserted into the detection hole. As aresult, the buckle open/close switch is operated by the open/closeprotrusion 156, and the locked state of the buckle 9 is detected.

In addition, as shown in FIG. 1 and the like, a first socket section 28,a second socket 29 and an earphone jack 30; display lamps such as acharge lamp 31 a, and a power supply lamp 31 b; and operation means 32such as a reproducing button, and a volume switch are provided on theside section of the player main body 6. The first and second socketsections 28, 29 and the earphone jack 30 are disposed on the left sidesection of the player main body 6, and the display lamps and theoperation means 32 are disposed on the right side section of the playermain body 6.

The battery chassis body 3 is detachably attached as a power supplydevice in the player main body 6 which has such a configuration. Thebattery chassis body 3 comprises a first battery case 34 and a secondbattery case 35, and the both cases 34 and 35 are rotatably connected toeach other The battery cases 34 and 35 are configured to compriserespectively flat rectangular containers, wherein the plane shapes havebeen made approximately similar shapes, and the lower battery case 35 asthe second battery case is longer than the upper battery case 34 as thefirst battery case in the longitudinal direction. And, the widths of theboth battery cases 34 and 35 are a little bit wider than those of theprotruding section 6 a of the player main body 6 and the protrudingsection 8 a of the open/close cover 8.

As shown in FIG. 2, connection sections 34 a, 35 a which are outwardlyprotruding to both sides in the width direction are provided at one end,in the longitudinal direction, of each battery cases 34 and 35. Theupper and lower battery cases 34 and 35 are integrally configured to becapable of rotating by connecting the connection sections 34 a, 35 a toeach other. Connection means of the battery chassis body 3 makes itpossible for the upper and lower battery cases 34 and 35 to chooseeither a closed state in which the above cases are approximatelyparallel to each other with a predetermined gap in the verticaldirection or an open state in which the upper battery case 34 areinclined to the lower battery case 35 by an arbitrary angle (forexample, 45 degrees and 60 degrees).

The predetermined gap between the upper and lower battery cases 34 and35 amounts to the thickness of the player main body 6, and the playermain body 6 is inserted between the upper and lower battery cases 34 and35. In order to position the player main body 6 which has been insertedas described above, an engagement concave/convex section 36 is providedat the tip section of the upper battery case 34. A hook section 37 witha L-shape cross section is provided in the open/close cover 8,corresponding to the engagement concave/convex section 36. The hooksection 37 is set up in the neighborhood of the engagement receivingsection 26 in the open/close cover 8. By engagement of the engagementconcave/convex section 36 with the hook section 37, positioning of theupper battery case 34 in the open/close cover 8, and joining of theopen/close cover 8 and the upper battery case 34 together may besimultaneously executed.

Moreover, a fixing screw 38 is rotatably fitted in the lower batterycase 38. The fixing screw 38 is disposed at a position corresponding tothe protruding section 6 a of the player main body 6 in the lowerbattery case 35. A tapped hole is provided on the back of the playermain body 6, corresponding to the fixing screw 38, and the lower batterycase 35 is fixed to the player main body 6 by screwing together thefixing screw 38 and the tapped hole.

When the lower battery case 35 is in a state of being fixed, the upperbattery case 34 is integrally rotated with the open/close cover 8. Thatis, the open/close cover 8 can freely open and close the disk chassissection 7 while the upper battery case 34 is in a state of being inplace. An appropriate number of rechargeable second batteries 40 areheld in the upper battery case 34.

Moreover, an appropriate number of rechargeable second batteries 40 anda safety circuit 41 are held in the lower battery case 35. The safetycircuit 41 is connected to a connector 42. The connector 42 isintegrally provided on the rear surface section of the lower batterycase 35. A plug 43 which is connected to the connector 42 is integrallyprovided on the rear surface section of the player main body 6.Accordingly, the connector 42 and the plug 43 are automaticallyconnected by putting in place the battery chassis body 3 in the playermain body 6, and electric power is automatically supplied from thebattery chassis body 3 to the player main body 6.

As materials for the player main body 6, the open/close cover 8, thebuckle 9 and the upper and lower battery cases 34 and 35 configured asdescribed above, for example, plastic such as ABS (acrylonitrilebutadiene styrene resin), a POM (polyacetal resin) and other engineeringplastic may be adapted. Moreover, aluminum alloys and other metals maybe used for the materials.

Furthermore, the control device 2 has a configuration shown in FIG. 1,FIGS. 14A to 14C, and the like. That is, the control device 2 isconfigured to comprise: a cabinet 50 as a display device main body; aliquid crystal display 51 which shows one concrete example of a displaysection; a cover body 52 which opens and closes the display surface ofthe liquid crystal display 51; an operation section 53 which includesvarious types of switching means, adjusting means, and the like.

The cabinet 50 comprises a hollow chassis having an approximatelyquadrilateral shape, and an opening window 54 is a little bit offset toone side in the longitudinal direction which is a lateral direction.Further, on the other side of the longitudinal direction of the cabinet50 a, plurality of openings (three holes in the present embodiment) 55a, 55 b and 55 c are provided at predetermined intervals in the widthdirection. And, the liquid crystal display 51 is fitted into the openingwindow 54, and various kinds of operation buttons in the operationsection 53 are inserted into a plurality of openings 55 a to 55 c,respectively.

An operation button 56 a as a basic operation switch by which basicoperation such as reproduction, fast-forwarding, and rewinding isexecuted is attached in the first opening 55 a which is located at theupper part. With regard to the operation button 56 a, on/off operationof reproduction may be realized, for example, by pressing the centerpart of the button 56 a. And, fast-forwarding or rewinding operation maybe selectively executed by pressing one side of the both sides.

Moreover, a selection button 56 b as a mode selection switch by whichmode selection and decision may be executed is attached in the secondopening 55 b which is located at the center. With regard to theselection button 56 b, one of various kinds of modes may be selected,for example, by pressing one part of four parts which are located at theupper, lower, right, and left parts of the button 56 b, and the selectedmode may be decided by pressing the center part of the button 56 b afterthe selection. In addition, a power supply button 56 c as a power supplyswitch is attached in the third opening 55 c which is located at thelower part. On/off of the power supply is executed by sliding the powersupply button 56 c in the lateral direction.

Furthermore, a long hole 55 d which is extended in the width directionis provided on the side surface of the cabinet 50 at the side of theopenings 55 a to 55 c. Two adjusting buttons 56 d and 56 e as volumeswitches for volume adjusting is attached in the long hole 55 d. Oneadjusting button 56 d turns up the volume, and the other adjustingbutton 56 e turns down the volume.

As shown in FIG. 1 and FIG. 15, and the like, a connection section 58 ofthe cover body 52 is provided on the upper surface of the cabinet 50.The connection section 58 comprises: protruding rails 59 a and 59 bwhich are provided on the upper surface of the cabinet 50; protrudingrails 60 a, 60 b which are provided on the upper surface of the coverbody 52; a connection block 61 which is located between the protrudingrails 59 a and 59 b, and between the protruding rails 60 a and 60 b, twospring pins 62 and 63, which represent one concrete example of resistingmeans; and the like.

Two sets of the protruding rails 59 a and 60 a, and 59 b and 60 b havesimilar shapes and configurations, and the strips of each set aredisposed on the same shaft center lines, with predetermined spacesin-between, respectively. One end of each spring pin 62 and 63 in theaxial direction is press-fit into one internal end face of eachprotruding rail 59 a, 60 a, respectively.

As shown in FIG. 14C on an enlarged scale, the spring pins 62 and 63 areformed by providing slits 62 a and 63 a in metal cylindrical tubes. Eachslit 62 a and 63 a of the spring pins 62 and 63 is continuously providedfrom one end to the other end of the cylindrical tubes, so thatelasticity may wholly be imparted by making it possible for the diameterthereof to be elastically reduced by the amounts of the widths of theslits 62 a and 63 a.

Here, the shapes of the slits 62 a and 63 a of the spring pins 62 and 63are not limited to a wavelike shape shown in a figure according to thepresent embodiment, and may be formed to other shapes such as a straightline one, a curved line one, a saw-toothed one, or a horny one. As amaterial of the spring pins 62 and 63, metals such as spring steel orstainless steel may be preferable, but engineering plastic may also beadapted.

Convex shaft sections 62 b, 63 b which are respectively protrudingtoward the spring pins 62 and 63 are each provided on one end faceinside each of protruding rail 59 b, 60 b. The diameters of therespective convex shaft section 62 b, 63 b are set to approximatelysimilar amounts of the outer diameters of the spring pins 62 and 63,respectively. The two convex shaft sections 62 b, 63 b, and theprotruding sections of the spring pins 62 and 63 are covered by theconnection block 61.

As shown in FIG. 16, the connection block 61 is formed by a combinationof a first block 61 a and a second block 61 b which are formed likegutters, and a fixing screw 64 which tightens and fixes both the blocks61 a, 61 b. A through hole 65 is provided approximately at the centerpart of the first block 61 a, and a boss section 66 is disposedapproximately at the center part of the inner surface of the secondblock 61 b. Moreover, a tapped hole 66 a into which a screw section ofthe fixing screw 64 is screwed is provided at the boss section 66.

The second block 61 b is applied against one side of the protrudingsections of the two spring pins 62 and 63 and the two convex shaftsections 62 b, 63 b, and the first block 61 a covers the other side ofthem. Thereafter, the fixing screw 64 is passed through both the blocks61 a, 61 b, and the screw section thereof is screwed into the tappedhole 66 a of the boss section 66 to thereby tighten the both blocks.

Thereby, the cabinet 50 and the cover body 52 are rotatably connectedthrough the connection block 61 by the connection section 58 which hashinged structures at two locations. In such a case, the amounts ofreduction in the diameters of the spring pins 62 and 63 may be adjustedby adjusting the tightening force of the fixing screw 64. As a result,frictional forces which are generated between the connection block 61and the spring pins 62 and 63 may be changed upwardly or downwardly bychanging the diameters of the spring pins 62 and 63. Thereby, operationforces at a time of the cover body 52 in operation may be adequatelyadjusted to appropriate values by changing the frictional forces whenthe cover body 52 is opened or closed.

Moreover, the cover body 52 comprises a plate body the size of which maycover approximately all over the display surface including the liquidcrystal display 51 of the cabinet 50. The above-described protrudingrails 60 a, 60 b are integrally provided at the upper edge of the coverbody 52. The cover body 52 and the cabinet 50 are rotatably connected bythe connection section 58 which has the hinged structures at twolocations.

Accordingly, the cover body 52 may be rotated by a maximum angle ofapproximately 360 degrees to the liquid crystal display 51 which is adisplay surface. Then, by making the cover body 52 move to the backsideby rotating by an angle of approximately 360 degrees the cover body 52itself may be used, for example, for a function such as a stand of thecabinet 50.

A first rotating shaft which is parallel to the display section isformed by the above first spring pin 62 and convex shaft section 62 b ofthe cabinet 50. The cabinet 50 and the connection block 61 is connectedsuch that they can be rotated around the first rotating shaft. And, asecond rotating shaft is formed by the second spring pin 63 and theconvex shaft section 63 b of the cover body 52. The second rotatingshaft is parallel to the first rotating shaft, and the cover body 52 andthe connection block 61 is connected such that they can be rotatedaround the second rotating shaft. The cover body 52 may be fixed at anarbitrary position on each rotating shaft by a frictional force which isgenerated between the connection block 61 and the spring pin 62 or 63.

Engineering plastic such as ABS, and POM may be applied for materials ofthe cabinet 50, the cover body 52, and the connection block 61 of theabove-described connection block 61. But, the materials are not limitedto the above plastic, and aluminum alloys or other metals may be used asthe materials.

As shown in FIG. 1, one end of a first connection cable 4 which connectsthe control device 2 to the player main body 6 is fixedly connected tothe lower part at the side of the operation section 53 in the cabinet50. A first plug 70 for connection to the player main body 6 isintegrally fixed to the other end of the connection cable 4.

The first plug 70 comprises a plug main body 71 which includes a hollowbody with a quadrilateral section, a cap body 72 of a semicircular shapewhich is joined to the backside of the plug main body 71, a terminalcover 73 which is protruding from the tip side of the plug main body 71,and the like. The cap body 72 is formed to become thinner in the widthat the tip side. Protruding guide rails 74 which regulate the insertingdirection when the cap body 72 are inserted into the first socketsection 28 of the player main body 6 are provided at two positions onone surface, which has a thinner width, of the cap body 72. A pair ofguide grooves 28 a which are slidably fitted to the protruding guiderails 74 are provided, corresponding to the above guide rails 74, in thefirst socket section 28.

In addition, an erroneous insertion prevention convex section 74 a thatprotrudes forward in an arc-shape is provided at the tip section of onesurface on the wide side of the plug main body 71. At the tip section onthe wide side of the plug main body 71 there is provided an erroneousinsertion prevention concave section having an arc-shape notch thatopens at the tip edge to thereby be symmetric with this 74 a.

As described above, by providing the concave section and convex sectionfor preventing the erroneous insertion into the tip section on theinsertion side of the plug main body 71 the possibility that a lot ofterminals which are disposed in the terminal cover 73 might be damageddue to an erroneous insertion of the first plug 70 may be eliminated.Moreover, by providing a pair of protruding guide rails 74 and 74 in theplug main body 71, the possibility that terminals in the terminal cover73 might be damaged due to external-forces with which to twistingly pullout the first plug 70 in the extracting direction is eliminated.

The terminal cover 73 of the first plug 70 comprises a slender framebody with a quadrilateral section. A lot of terminals are disposed in arow (arrangement in a plurality of lines is acceptable) along thelongitudinal direction in the above cover. And, one end of a pipe-shapesheath member 75, which is diagonally and sideways extending, isconnected to the rear part of the cap body 72. A lot of wire rods arepassed through the sheath member 75.

As described above, by assuming that the pulling-out direction of thewire rods is set to the diagonally sideways direction, the leadingdirection of the connection cable 4 may be regulated so that the aboveleading direction be approximately in the same direction with thelongitudinal direction of the battery chassis body 3. As a result, loadswhich are applied by the connection cable 4 to the connection section ofthe first plug 70 may be reduced, and occurrences of troubles such as ashort circuit and breaking of wire may be restrained. Here, the plugmain body 71 of the first plug 70 is inserted into the root parts of theprotruding guide rails 74.

And, a second plug 77 which is provided at one end of the secondconnection cable 5 in order to connect the player main body to otherelectronic devices is detachably attached in the second socket 29. Thesecond plug 77 has a terminal cover 78 which is protruding from the tipsection at the plug inserting side. The terminal cover 78 comprises aslender frame body with a quadrilateral section. A lot of terminals aredisposed in a row (arrangement in a plurality of lines is acceptable)along the longitudinal direction in the above cover 78.

One end of a wire rod 79 is connected to the back surface of the secondplug 77, and the other end of the wire rod 79 is connected to aconnector 80. The connector 80 connects the player main body 6 to otherelectronic devices (for example, a television set). The secondconnection cable 5 is comprised of the second plug 77, the wire rod 79and the connector 80.

The connector 80 comprises a hollow chassis of a flat shape, and thewire rod 79 is connected to the side surface of one end. A plurality ofterminals 81 are disposed in a line on the other end surface of theconnector 80. For example, a video terminal, an S1 video terminal andright and left audio terminals, may be listed as the above terminals 81.

An electronic device with the above configuration may be used, forexample, in the following way. The battery chassis body 3 is integrallyattached to the player main body 6 in advance. That is, the protrudingsection 6 a side of the player main body 6 is inserted between the upperbattery case 34 and the lower battery case 35 of the battery chassisbody 3. Then, the engagement concave/convex section 36 is engaged withthe hook section 37 of the open/close cover 8.

At this time, by inserting the player main body 6 up to a predeterminedposition, the plug 43 provided in the player main body 6 is engaged withthe connector 42 provided in the lower battery case 35, as shown in FIG.4. Accordingly, the player main body 6 and the battery chassis body 3are electrically connected to each other. Subsequently, the fixing screw38 of the lower battery case 35 is screwed into a tapped hole of theplayer main body 6, and the above case 35 and the main body 6 aretightened. Thereby, the hook-up of the battery chassis body 3 to theplayer main body 6 is completed.

Then, the first plug 70 of the first connection cable 4 is inserted intothe first socket section 28 of the player main body 6, and the controldevice 2 is connected to the player main body 6 through the firstconnection cable 4. Thereby, the player main body 6, the battery chassisbody 3, and the control device 2 are electrically connected to eachother, and the operation of the DVD player 1 becomes possible.

Operation to attach an optical disk in the player main body 6 of the DVDplayer 1 may be realized, for example, in the following manner. In thefirst place, the buckle 9 is pulled up, and the locked state of theopen/close cover 8 with the buckle 9 is released. That is, hook a fingeron and pull up the buckle 9 against the spring force of the springmember 152. Thereby, the buckle 9 is directly pulled up without thesliding operation of the sliding member 151 to realize the unlocking ina simple manner.

In this case, a comparatively large force is required to be applied onthe buckle 9, as the spring force of the spring member 152 becomesresistant to the pull-up operation of the buckle 9. In a separate wayfrom this, in order to release the locked state of the buckle 9 with asmall force, the slide member 151 is slid to retreat the engagement body9 b to thereby release an engagement by the engagement body 9 b with theengagement receiving section 26. Thereby, the locked state of the buckle9 is released. Accordingly, the buckle 9 may be simply pulled up with asmall force by rotating the buckle 9 about the hinge section 21.

Thus, when the buckle 9 is pulled up, the open/close protrusion 156provided on the inner surface of the buckle 9 is extracted from thedetection hole 27 which is provided on the front surface of the playermain body 6. Thereby, a detection switch which detects the locked stateof the buckle 9 becomes off, and a detection signal is sent to thecontrol device 2.

Then, the engagement receiving section 26 or the like which have beenexposed by pulling up the buckle 9 is held, for example, with afingertip, and the front side of the open/close cover 8 is drawn up toan arbitrary height. Thereby, the disk chassis section 7 which isprovided on the upper surface is opened, and the disk drive device 10 isexposed.

At this time, the cover open/close detection piece 19 of the open/closecover 8 is extracted from the detection hole 20 for the cover of theplayer main body 6. Thereby, a detection switch which detects openingand closing of the open/close cover 8 becomes off, and a detectionsignal is sent to the control device 2. When an open signal of theopen/close cover 8, and the above-described release signal of the buckle9 are not supplied to the control device 2, that is, when the open/closecover 8 is open, or, when the buckle 9 is open, the disk drive device 10is never driven.

Here, the upper battery case 34 of the battery chassis body 3 isintegrally moved together with the open/close cover 8, and are jumped uptogether with the open/close cover 8. Thereby, the disk chassis section7 is opened, and the turntable 11 of the disk drive device 10 isexposed, as shown in FIG. 10. Thereafter, a desired optical disk isattached on the turntable 11, and chucking of the optical disk isexecuted.

Then, the open/close cover 8 is pushed down together with the upperbattery case 34, and the disk chassis section 7 is closed with theopen/close cover 8. At this time, by completely closing the open/closecover 8 the cover open/close detection piece 19 is inserted into thecover detection hole 20. Accordingly, the detection switch which detectsthe closed state of the open/close cover 8 becomes on, and the detectionsignal is supplied to the control device 2. the above detection signalalone will not start the driving of the disk drive device 10.

Then, the buckle 9 is pushed up, and the engagement body 9 b is engagedwith the engagement receiving section 26. Thereby, the open/close cover8 is firmly locked to the player main body 6 through the buckle 9. Atthis time, the open/close protrusion 156 is inserted into the buckledetection hole 27 by completely closing the buckle 9. As a result, thedetection switch which detects the locked state of the buckle 9 becomeson, and the detection signal is supplied to the control device 2. As thedetection signal and the above-described detection signal for theopen/close cover are supplied to the control device 2, driving the diskdrive device 10 can be started.

The DVD player 1 which has completed preparation for use as describedabove can be used indoors, and is also preferable used outdoors. In sucha case, the DVD player 1 is preferably configured, for example, to becapable of being hung with the use of a not-shown strap, that is,capable of being carried around while hung from a neck or the like.

As a result, by operating the control device 2 while holding it withhand, images of information recorded on an optical disk may be readilyenjoyed outdoors, using the liquid crystal display 51 of the controldevice 2. Moreover, voices of information recorded on the optical diskmay be enjoyed with earphones connected to the earphone jack 30.

Then, one embodiment of operation of the control device 2 will bedescribed. FIG. 17A shows a state in which a user holds the controldevice 2 with hands and the cover body 52 is opened at an angle a littlebit less than 90 degrees to the liquid crystal display 51 of the displaysurface of the cabinet 50.

In this case, it is assumed that a frictional force which is generatedbetween the second spring pin 63 of the second rotating shaft and theconnection block 61 is smaller than a frictional force which isgenerated between the spring pin 62 of the first rotating shaft and theconnection block 61 (for example, the thickness of the spring pin 62 isset to be larger than that of the thickness of the spring pin 63, andthe elasticity of the spring pin 62 is set to be larger than that of theelasticity of spring pin 63.).

Thereafter, in a state that the first rotating shaft is fixed, the coverbody is rotated about the second rotating shaft in the first place.Thereafter, after the amount of rotation of the first rotating shaftbecomes the maximum, the cover body 52 is rotated about the firstrotating shaft in the second place.

In the first place, hook the finger tip on the free end side of thecover body 52 and pull up the cover body 52. Thereby, as the frictionalforce caused by the spring pin 62 of the first rotating shaft is largerthan that of the spring pin 63 of the second rotating shaft, the coverbody 52 is rotated around the spring pin 63 of the second rotatingshaft, and the second convex shaft section 63 b.

Then, as shown in FIG. 17A, when the cover body 52 is stopped at anarbitrary angle narrower than 90 degrees, the cover body 52 is fixed bythe frictional force of the spring pin 63 at an angle at which the body52 has been stopped. In such a condition, though an operator may seecontents displayed on the liquid crystal display 51, it is difficult forothers to look in the contents, and it is possible to prevent the othersfrom peeping at the contents from the surroundings.

FIG. 17B shows a state in which a user holds the control device 2 withhands, and the cover body 52 is opened at an angle of 90 degrees to theliquid crystal display 51 of the cabinet 50. As the cover body 52 isstopped at an angle of near 90 degrees, the cover body 52 may be used asa sunshade.

In addition, FIG. 18A shows a state in which the cover body 52 isrotated by an arbitrary angle equal to or larger than 270 degreesrelative to the display surface of the cabinet 50, and the cabinet 50and the cover body 52 each have the free ends thereof placed on a planeP such as a desk. The above state is caused after the connection block61 is rotated from the state shown in FIG. 17B by 180 degrees about thespring pin 62 of the first rotating shaft and the first convex shaftsection 62 b.

Subsequently, the cover body 52 is rotated by an arbitrary angle smallerthan 90 degrees about the spring pin 63 of the second rotating shaft andthe second convex shaft section 63 b. Thereby, as shown in FIG. 18A, thecover body 52 may be used as a stand for the cabinet 50. In this case,by changing the angle of inclination of the cover body 52 relative tothe cabinet 50 the display surface of the liquid crystal display 51 canbe freely set to a state by a user such that the user may easily see thedisplay surface.

FIG. 18B shows a state in which the cover body 52 is rotated by an angleof 360 degrees to the display surface of the cabinet 50, and isoverlapped on the back surface of the cabinet 50. In this case, it ispossible to dispose the cover body 52 such that the body 52 will notbecome an obstacle when a user sees the display surface while holdingthe control device 2 with hands.

FIG. 19A shows one example in which a rotating shaft 67 is providedinstead of the second spring pin 63 of the second rotating shaft, out oftwo spring pins 62 and 63 which are used in the above control device 2,and the cover body 52 and the connection block 61 are rotatablyconnected through the rotating shaft 67. In this case, the protrudingrails of the cabinet 50 and the connection block 61 are rotatablyconnected with a frictional force caused by the elasticity of the springpin 62 as in the above embodiment. Here, anti-slipping rubber 68 a, 68 bis stuck as a anti-slipping member on each free end of the cover body 52and the cabinet 50.

FIG. 19B explains the operation of the control device 2 shown in FIG.19A. It is shown that a user holds the control device 2 with hands, andthe cover body 52 is opened at an angle of 90 degrees to the displaysurface of the cabinet 50. Thereby, the display surface may be easilyseen by using the cover body 52 as a sunshade.

As described above, although the rotating shaft 67 connects the coverbody 52 and the connection block 61 rotatably without accompanying thefrictional force by moving the rotating shaft 67 in the diagonallybackward direction of the spring pin 62, the cover body 52 may be keptat a position to which the body 52 is rotated by an angle ofapproximately 90 degrees to the display surface of the cabinet 50 onlywith the frictional force based on the elasticity between the spring pin62 and the connection block 61.

FIG. 19C shows that the cover body 52 is rotated by an arbitrary angleequal to or larger than 270 degrees to the display surface of thecabinet 50, and the cabinet 50 and the cover body 52 each have free endsplaced on a plane P such as a desk. Thereby, the cabinet 50 may be keptstanding on a horizontal plane by using the cover body 52 as a stand. Inthis manner, by changing the angle of inclination of the cover body 52relative to the cabinet 50, the display surface of the cabinet 50 can befreely set to a state by a user such that the user may easily see thedisplay surface.

Moreover, as anti-slipping rubber 68 a, 68 b is fitted to each of thefree ends of the cabinet 50 and the cover body 52, there is nopossibility that the control device 2 slides on a plane P such as adesk. Accordingly, the inclination angle of the cabinet 50 may be keptat an arbitrary angle by using the cover body 52 as a stand, even whenthe rotating shaft 67 is used as the one rotating shaft.

FIG. 20 shows one example in which the diameters of two spring pins 62and 63 are changed for different elasticities. For example, it isassumed that, of one pair of spring pins 62 and 63, the diameter of thefirst spring pin 62 is smaller, and that of the second spring pin 63 islarger, and the frictional force of the second spring pin 63 is largerthan that of the first spring pin 62. Also in the present embodiment,the same as in the embodiment shown in the above FIG. 17A, 17B and thelike, the spring pin 62 with a smaller elasticity is configured to bepreferentially rotated, and rotating of the spring pin 63 with a largerelasticity is started after the rotating amount of the spring pin 62becomes the maximum.

In this case, in either of the occasions in which the cover body 52 isopened and closed to the display surface of the cabinet 50 the coverbody 52 is rotated about the first rotating shaft with the spring pin 62with a smaller elasticity in the first place, and the body 52 is rotatedabout the second rotating shaft with the spring pin 63 with a largerelasticity in the second place.

That is, the connection block 61 is rotated relative to the cabinet 50about the spring pin 62 in the first place by open/close operation ofthe cover body 52. The cover body 52 is rotated relative to theconnection block 61 about the spring pin 63 in the second place. In thepresent embodiment, of the first and the second rotating shafts whichare disposed parallel to each other, the rotating shaft with the springpin 62 having a smaller elasticity is preferentially rotated, androtating of the cover body 52 relative to the cabinet 50 may be smoothlyexecuted.

FIG. 21A shows one example in which a clicking plate 69, instead of oneof the above two spring pins, for example, the spring pin 63, isprovided as resisting means. In the control device 2 shown in thepresent embodiment, the angle of the cover body 52 relative to thedisplay surface of the cabinet 50 may be changed over to multiple stagesof every predetermined angle(four stages of every 90 degrees in thepresent embodiment). Here, both of the frictional force of the clickingplate 69 and that of the spring pin 63 may be configured to have thesame magnitude, or different magnitudes for each frictional force.

FIG. 21B shows an exploded and enlarged view of the clicking circularplate 69 shown in FIG. 21A. A clicking convex circular plate is fixed tothe base a of the cover body 52 with fixing means such as adhesives.Four convex sections 69 a are concyclically disposed at equal intervalsin the circumferential direction on the clicking convex circular plateb. The clicking convex circular plate c is configured to be facing theclicking concave circular plate b.

One concave section 69 b which is disposed concyclically relative to thefour convex section 69 a and can detachably engage with each convexsection 69 a is provided on one surface of the clicking concave circularplate c. One surface of a ring-like corrugated plate spring d is fixedon the other surface of the clicking concave circular plate c withfixing means such as welding or the like. The other surface of thecorrugated plate spring d is fixed on the base e of the connection block61 with fixing means such as adhesives.

Thus, the clicking circular plate 69 has a structure by which theclicking convex circular plate b, the clicking concave circular plate c,and the corrugated plate spring d are laminated. The clicking circularplate 69 is located between the base a of the cover body 52 and the basee of the connection block 61.

Thus, when the cover body 52 is rotated, a frictional force is generatedby the elasticity of the corrugated plate spring d until any one of fourconvex sections 69 a of the clicking convex circular plate b protrudesfrom the concave section 69 b of the clicking concave circular plate c,and the other convex sections 69 a adjacent to each other are engaged.The cover body 52 is held at an arbitrary angle to the display surfaceof the cabinet 50 by the above frictional force.

And, the cover body 52 is locked at a predetermined angle to the displaysurface of the cabinet 50 by engaging the convex section 69 a of theclicking convex circular plate b with the concave section 69 b of theclicking concave circular plate c. Thereafter, by extracting the convexsection 69 a from the concave section 69 b with the rotation of thecover body 52, there occurs a click feeling as the cover body 52 isrotated. Thus, change in the angle of the cover body 52 is surely sensedby finger touch, using the click feeling at insertion or extraction ofthe convex section 69 a into or from the concave section 69 b.

FIG. 22A shows one example in which the above-described two clickingpositions of the clicking plate 69 are set to two points, and theclicking plate 69 is provided on the first rotating shaft, and thespring pin 63 is provided on the second rotating shaft. Two convexsections 69 a which are disposed concyclically at equal distances in thecircumferential direction on the clicking plate 69. Here, the structuresof the clicking concave circular plate c and the corrugated plate springd are the same as in the above described embodiments.

In this case, both of the frictional force of the clicking plate 69 andthat of the spring pin 63 may be configured to have the same magnitude,or different magnitudes for each frictional force. In the presentembodiment, one example in which the frictional force of the clickingplate 69 is configured to be larger than that of the spring pin 63 hasbeen shown.

As shown in FIG. 22B, when the cover body 52 is opened, the secondrotating shaft with a smaller frictional force is rotated in the firstplace, and the first rotating shaft with a larger frictional force isrotated in the second place, When a pull-up force is applied on the freeend of the cover body 52, the cover 52 is opened at an angle of a littleover 180 degrees to the display surface of the cabinet 50 with thespring pin 63, which is the second rotating shaft, as the center ofrotation. At this time, a frictional force is generated between thespring pin 63 and the connection block 61, and the cover body 52 isrotated accompanying a frictional force by the elasticity of the springpin 63.

Subsequently, as shown in FIG. 22C, when the cover body 52 is furtheropened, the clicking plate 69 and the connection block 61 are rotated by180 degrees with the clicking plate 69, which is the first rotatingshaft, as the center of rotation. Accordingly, the cover body 52 isopened at 360 degrees to the display surface of the cabinet 50, and thecover body 52 attaches to the back of the cabinet 50.

At this time, click feeling is generated by the clicking plate at thebeginning and the end of rotation, and during rotation, the cover body52 is rotated accompanying a frictional force by a spring force of thecorrugated plate spring. As described above, the cover body 52 isrotated accompanying the click feeling and the frictional force.

FIG. 23 shows another embodiment of resisting means which gives loads tothe cover body 52 when the body 52 is rotated. The resisting meansdescribed in the present embodiment comprises a gear device 83 and adamper device 87. A control device 2 described in this presentembodiment is provided with the gear device 83 which comprises two gears84 a and 84 b as resisting means instead of one of two spring pins whichhave been described above, for example, the spring pin 62, and thedamper device 87.

The rotating shaft 85 is provided as a first shaft in the control device2, and the connection block 61 is fixed in the middle portion in theaxial direction of the rotating shaft 85. One end of the rotating shaft85 is protruding sideways, passing through the cabinet 50, and asmall-diameter gear 84 a is fixed to the protruding section. Alarge-diameter gear 84 b is configured to engage with the small-diametergear 84 a, and a shaft section 88 which is protruding from one side isprovided in the large-diameter gear 84 b.

The shaft section 88 of the large-diameter gear 84 b is rotatablypassing through the side surface of the cabinet 50. And, the tip of theshaft section 88 is inserted into the damper device 87 which is held inthe cabinet 50. The damper device 87 gives a resisting force such as anadhesive force and a frictional force at rotating of the shaft section88, and, for example, a liquid damper which uses the liquid, and othertypes of damper devices may be used as the device 87. 86 is a gearboxwhich covers the large and small gears 84 a and 84 b.

In the present embodiment, when the cover body 52 is pulled up, and theconnection block 61 is rotated, the rotation shaft 85 and thesmall-diameter gear 84 a are rotated integrally with the connectionblock 61. As the large-diameter gear 84 b engages with thesmall-diameter gear 84 a at any time, the shaft section 88 is rotated byan amount corresponding to the reduction ratio between the gears 84 aand 84 b. A resisting force is applied on the damper device 87 accordingto the rotating amount of the shaft section 88, and the connection block61 is rotated relative to the cabinet 50 accompanied by the aboveresisting force. Thereby, the cover body 52 may be configured to berotated in a smooth way with an adequately resisting force, and, at thesame time, the cover body 52 may be reliably fixed at an arbitraryposition in the middle way of the rotating.

The control device 2 with the above configuration is not limited to usefor the DVD player 1 in the above embodiments, but it is also preferablyused for, for example, PDA (Personal Digital Assistants), a small wordprocessor, a small microcomputer, an electronic dictionary, a portabletelevision set, and a small electronic clock. Moreover, it may be alsoapplied for desktop-type devices of the above-listed electronic devices,and other electronic devices.

In addition, FIG. 13 shows a state in which the DVD player 1, anot-shown domestic power supply and the like are connected to each otherfor charging the battery chassis body 3 of a power-supply device. InFIG. 13, a numeral 90 represents a holding stand which keeps and holdsthe player main body 6. The holding stand 90 comprises a holding section90 a in which holding grooves are formed on the upper surface, and aholding platform 90 b which is continuous from the lower part of theholding section 90 a. A holding platform 90 b of the holding stand 90 isextendedly and widely formed such that a sufficiently large mountingsurface is secured.

Furthermore, supporting pieces 91 and 92 which supports the side surfaceof the player main body 6 are provided at both sides of the holdingsection 90 a in the direction of the holding grooves. A pawl section 91a which engages with a concave part provided on the side surface of theplayer main body 6 is provided in the tip section of one supportingpiece 91. With the provision of the pawl section 91 a, it is possible tosecurely hold the DVD player 1 weight distribution of which in thecircumferential direction becomes badly balanced due to installation ofthe battery chassis body 3, without rolling even in a state in which thebattery chassis body 3 is turned sideways.

Here, a numeral 93 shown in FIG. 13 represents a third connection cablewhich connects a power supply such as a domestic socket and the playermain body 6. A charging plug 94 is fitted to one end of the connectioncable 93. The charging plug 94 may be attached or detached to or fromthe second socket section 29 of the player main body 6. A terminalsection is configured to be moved backward as one operation by pressinga semicircle part at the center of the charging plug 94 to releaseconnection to the second socket section 29.

Though, as described above, the description has been made in theabove-described embodiments, assuming, for example, that an informationreproduction device is the DVD player 1, and the control device 2 is aremote control device with a liquid crystal display of the player 1, butthe present invention is not limited to the above embodiments. And theinvention may be also applied for electronic devices such as a portableCD player, and a portable disk drive device, and for their remotecontrol devices.

Moreover, one example in which the player main body 6 and the controldevice 2 are connected to each other by wire has been described in theabove-described embodiments, but it is needless to say that radio meansmay be configured to be applied as signal transmission means, whereinthe player main body 6 and the control device 2 are connected to eachother by radio for signal exchanging.

Thus, various modifications may be applied without departing from thetrue spirit and scope of the invention.

INDUSTRIAL APPLICABILITY

According to a display device of the present application, a cover bodymay be configured to have friction and to be rotated in a continuousmanner, and, at the same time, as two rotating shafts which are parallelto each other are provided in a connection section between a cover bodyand a display device main body, and resisting means to generate africtional force at rotating is provided on at least one of the rotatingshafts. Moreover, the cover body may be used for protection of thedisplay section and, at the same time, for a wall to prevent others frompeeping the display section. Furthermore, the cover body may be alsoused as a stand for the display device main body.

1. A display device comprising: a display device main body having a display section; a connection section rotatably provided relative to said display device main body about a first rotating shaft arranged parallel to said display section; a cover body rotatably provided in said connection section about a second rotating shaft arranged parallel to said first rotating shaft, wherein said cover body opens and closes said display section; and resisting means provided on at least one of said first rotating shaft and said second rotating shaft of said connection section, wherein said resisting means generates a frictional force upon rotating one of said connection section and said cover body, wherein said resisting means comprises: a first spring pin arranged in said second rotating shaft rotatably connecting said cover body and said connection section, wherein a diameter of said first spring pin is elastically reduced; and a second spring pin arranged in said first rotating shaft rotatably connecting said connection section and said display device main body, wherein a diameter of said second spring pin is elastically reduced, and wherein said connection section comprises a first block and a second block that respectively catch said first and second spring pins, and a fixing screw that fixes the first block and the second block; and frictional forces of said first and second spring pins are adjusted by tightening the fixing screw.
 2. The display device according to claim 1, wherein, said resisting means comprises a spring pin arranged in said second rotating shaft rotatably connecting said cover body and said connection section, wherein a diameter of said spring pin is elastically reduced, and said connection section and said display device main body are rotatably connected through said first rotating shaft.
 3. The display device according to claim 1, wherein, said resisting means comprises a spring pin arranged in said first rotating shaft rotatably connecting said connection section and said display device main body, wherein a diameter of said spring pin is elastically reduced, and said cover body and said connection section are rotatably connected through said second rotating shaft.
 4. The display device according to claim 1, wherein said first spring pin and said second spring pin have different respective elastic forces.
 5. The display device according to claim 1, wherein said cover body functions as shading means to shade incidence light to said display section by rotating from a state, in which said display section is closed, in an opening direction about one of said first rotating shaft and said second rotating shaft, and upon rotation said cover body further functions as a stand to support said display device main body such that said display device main body is held at a predetermined angle to a mounting surface on which said display device main body is mounted; and a main plane of the cover body rests on a back opposing to the display section of said display device main body by further rotating.
 6. A display device comprising: a display device main body having a display section; a connection section rotatably provided relative to said display device main body about a first rotating shaft arranged parallel to said display section; a cover body rotatably provided in said connection section about a second rotating shaft arranged parallel to said first rotating shaft, wherein said cover body opens and closes said display section; and resisting means provided on at least one of said first rotating shaft and said second rotating shaft of said connection section, wherein said resisting means generates a frictional force upon rotating one of said connection section and said cover body, wherein said resisting means comprises a spring pin arranged in one of said first rotating shaft and said second rotating shaft that rotatably connects one of said cover body and said connection section and said connection section and said display device main body, wherein a diameter of said spring pin can be elastically reduced; and a clicking plate which rotatably connects the other of said first and second rotating shafts not containing said spring pin.
 7. A display device comprising: a display device main body having a display section; a connection section rotatably provided relative to said display device main body about a first rotating shaft arranged parallel to said display section; a cover body rotatably provided in said connection section about a second rotating shaft arranged parallel to said first rotating shaft, wherein said cover body opens and closes said display section; and resisting means provided on at least one of said first rotating shaft and said second rotating shaft of said connection section, wherein said resisting means generates a frictional force upon rotating one of said connection section and said cover body, wherein, said resisting means comprises a spring pin arranged in one of said first rotating shaft and said second rotating shaft that rotatably connects one of said cover body and said connection section and said connection section and said display device main body, wherein a diameter of said spring pin can be elastically reduced; and a gear device and a damper device that rotatably connect the other of said first and second rotating shafts not containing said spring pin. 